Hi Julieta! Lovely article! I am very interested in reading your book someday. Your story sounds very promising and I confess I am much more a fa of Anne Rice and Bram Stocker's vampires :)
It's very difficult to get published by an editor, why don't you try publishing smaller stories independently via Create Space, Lulu, Amazon and Smashwords? Maybe if you start publishing stories independently, you call enough attention of the readers and have then more attention from publishers and agents? Could be an idea...
Cheers!